Service bulletins for the 2023 Toyota Highlander
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
150 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Engine are shown. Show all
| T-TT-0723-23 | 2023-04-17. Service bulletin. ENGINE AND ENGINE COOLING. TT: Some 2021 to 2023 MY vehicles equipped Rear Motor Generator, MGR (Q610) may experience an oil leak concern. This issue is currently under investigation |
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| T-TT-0714-22 | 2022-12-19. Service bulletin. ENGINE. TT: Some MY2022-2023 vehicles equipped with A25A-FKS or A25A-FXS engines may experience a MIL on condition with one or more of the following DTCs: P26CA12, P26CA14, P26CB71, P26CA31, P26CE37 |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.